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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - clang doesn't diagnose missing constexpr on static constexpr definition"
href="http://llvm.org/bugs/show_bug.cgi?id=19897">19897</a>
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<th>Summary</th>
<td>clang doesn't diagnose missing constexpr on static constexpr definition
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<th>Product</th>
<td>clang
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>PC
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<th>OS</th>
<td>All
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>C++11
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>nicolasweber@gmx.de
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<th>CC</th>
<td>dgregor@apple.com, llvmbugs@cs.uiuc.edu
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<th>Classification</th>
<td>Unclassified
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<pre>Clang accepts this code without diagnostic:
class A {
public:
static constexpr const int max_digits10 = 0;
};
const int A::max_digits10;
gcc on the other hand complains
error: redeclaration ‘A::max_digits10’ differs in ‘constexpr’
error: from previous declaration ‘A::max_digits10’
(Due to clang not diagnosing this, a missing constexpr in libc++ went unnoticed
for a long time, see r209888)</pre>
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